#!/usr/bin/env python3

# Copyright (c) 2020-2021 Fpemud <fpemud@sina.com>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.


import os
import glob
from ._util import Util
from ._cfg_client import ClientCfg
from ._cfg_server import ServerCfg
from ._data import CupsClasses, CupsPrinters


class CupsCfg:

    def __init__(self, version, prefix="/"):
        assert version.startswith("2.4.")

        self._version = version
        self._prefix = prefix
        self._path = os.path.join(self._prefix, "etc", "cups")

    @property
    def cfg_dir(self):
        return self._path

    def exists(self):
        return os.path.isdir(self._path)

    def get_server_cfg(self):
        return ServerCfg(self._path)

    def get_client_cfg(self):
        return ClientCfg(self._path)

    def get_classes(self):
        return CupsClasses(self._path).get_classes()

    def get_printers(self):
        return CupsPrinters(self._path).get_printers()

    def check(self, auto_fix=False, error_callback=None):
        if error_callback is None:
            error_callback = Util.doNothing

        # we strictly require that the following files and other redundant files do not exist:
        #   /etc/cups/ppd/***
        #   /etc/cups/certs/***
        #   /etc/cups/interfaces/***
        #   /etc/cups/log/***
        fullfnList = [self._path]
        fullfnList += self.get_server_cfg().paths
        fullfnList += CupsClasses(self._path).paths
        fullfnList += CupsPrinters(self._path).paths
        for fullfn in glob.glob(os.path.join(self._path, "**"), recursive=True):
            if fullfn not in fullfnList:
                error_callback("\"%s\" should not exist" % (fullfn))
